Study And Control Of The Composition Of The Substrate Used For The Breeding Of Plants Within The Framework Of Market N°06/2025/Dranef-Lsh Aimed At “The Supply Of Individualized Forest Plants Standardized In The Required Substrate And Container, For The Benefit Of The Regional Directorate Of The National Agency For Water And Forests Of Laâyoune Sakia El Hamra (Single Lot). ”, In Accordance With The Provisions Of Article No. 33 Of The Said Contract; By Taking Samples And Analyzing Samples Of Plant Breeding Substrate To Be Provided By The Service Provider By An Approved Laboratory And Establishing A Detailed Report According To The Attached Terms Of Reference.